理り解かいに苦くるしむ

expression, godan verb (-mu)

be unable to understand; be beyond comprehension; baffle

Expresses that something is so puzzling or illogical that one struggles to make sense of it. Often used when the speaker finds a situation or someone's actions inexplicable.

• 彼かれの行こう動どうは理り解かいに苦くるしむ。

  His behavior is beyond comprehension.

• なぜそんなことをしたのか、理り解かいに苦くるしむ。

  I can't understand why he did such a thing.